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Doubles in session


Current system
21072-1355
STF 2752 AB
HD 200968


Nearby doubles
40' : 21096-1412
TDT2794

46' : 21101-1405
LDS5918

58' : 21100-1435
TDT2799

62' : 21084-1454
FOX 256

63' : 21108-1429
FOX 257

64' : 21109-1429
FOX 258

69' : 21103-1304
CBL 181

75' : 21070-1241
RST4693

82' : 21091-1512
KPP2066

83' : 21019-1326
WSP 70AB

89' : 21075-1524
UC 4384

90' : 21018-1440
BRT2778

95' : 21083-1222
TDT2779

100' : 21068-1534
HU 273

100' : 21124-1500
H 1 47

105' : 21079-1211
HU 84

110' : 21003-1312
RST4073

111' : 21131-1247
OCC 973

113' : 21024-1227
OCC 914

113' : 21133-1246
GWP3046

115' : 21026-1528
OCC1013

116' : 21137-1249
OCC 974

116' : 21001-1449
RST4072

117' : 21151-1340
KPP3124

124' : 21002-1507
OCC1006

125' : 21155-1424
OCC 589



Selections
Full WDS
Binocular doubles
Binary Systems
Triple Systems
Quadruple Systems
Multiple Systems
Neglected List I
Neglected List II
Observed
Herschel, W.
Herschel, J.F.W.
Struve, Otto
Struve, F.G.W.

21072-1355 STF 2752 AB (HD 200968)

 
 
21h 07m 10.38s -13° 55' 22.5" P.A. 186.00 sep 3.7 mag 7.29,9.99 Sp K1V dist. 17.57 pc (57.31 l.y.)
 
 
Coord 2000 21072-1355 Discov num STF2752 Comp AB Coord arcsec 2000 21 07 10.38 -13 55 22.5
Date first 1827 Date last 2018 Obs 35
Pa first 145 Pa last 185.7 P.A. Now (θ) 185.7°
Sep first 5.2 Sep last 3.717 Sep. Now (ρ) 3.717"
Mag pri 7.29 Mag sec 9.99 delta mag (ΔM) 2.7 Spectral class K1V (yellow-orange)
Pri motion ra +382 Sec motion ra +362
Pri motion dec -047 Sec motion dec -033
Notes N O (See Notes, Orbital solution)
rPM=0.063 (< 0.3, Physical double)
This double is physical.
 
 
21072-1355 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show HD 200968 164147 21 07 10 -13 55 22 STF 2752 AB 2018 35 186 3.7 7.29 9.99 2.70 Y <===
Show 164147 21 07 10 -13 55 22 BU 157 AC 2020 17 285 33.9 7.29 11.56 4.27
Show 164147 21 07 10 -13 55 22 KPR 5 AD 2020 5 46 225.0 7.29 12.20 4.91
Quadruple system
4 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 200968 Constellation Aquarius SAO 164147 HIP 104239
Tycho2 5783-01074-1 HD 200968 GC 29501 ADS 14638
GL Gl 819A BD BD-14 5936 Distance 17.57 Distance ly 57.31
 
 
ORBITAL ELEMENTS
 
 
Period (P)507.7y Periastron (T)2124.1y Semi-major axis (a)3.876a
Eccentricity (e)0.45 Inclination (i)54° Longitude of periastron (ω)349.9°
Node (Ω)335.5° Notesn ReferenceHrt2013c
Equinox2000 Last observation2000 Grade5(1=Definitive, 9=Indet.)
label theta rho
2000 177.9 4.008
2001 178.3 3.980
2002 178.6 3.952
2003 179.0 3.923
2004 179.4 3.894
2005 179.7 3.865
2006 180.1 3.836
2007 180.5 3.807
2008 180.9 3.777
2009 181.3 3.747
2010 181.7 3.717
2011 182.1 3.687
2012 182.5 3.656
2013 182.9 3.625
2014 183.4 3.594
2015 183.8 3.563
2016 184.2 3.532
2017 184.7 3.500
2018 185.1 3.469
2019 185.6 3.437
2020 186.1 3.404
2021 186.6 3.372
2022 187.1 3.340
2023 187.6 3.307
2024 188.1 3.274
2025 188.6 3.241
2026 189.2 3.208
2027 189.7 3.175
2028 190.3 3.141
2029 190.8 3.108
2030 191.4 3.074


 
 grafico orbita
Note: Theta is PA, Rho is Sep. For yearly orbits, data refer to Jan 1st.


 
  


wds21072-1355a.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic		  
 
 
WDS 21072-1355 STF 2752 AB (HD 200968) : NOTES
 
 
discov_num notes refcode
BU 157 AC: Optical pair, based on study of relative motion of the components
using the method of apparent motion parameters. Kiy2008
 
 
REFERENCES
 
 
refcode metd author reference
Hrt2013c orb - Hartkopf, W.I. & Harshaw, R. 2013IAUDS.181Q...1H
Hrt2013c Inf. Circ. 181, 1, 2013
Kiy2008 - Kiyaeva, O.V., Kiselev, A.A. & Izmailov, I.S. 2008SvAL...32..405K
Kiy2008 SvAL 34, 405, 2008
 
 
DISCOVERER
 
 
idgroup discov author
1 BU Burnham, S.W. (BU 1 - 81)
179 KPR Kamper, K.W.
200 STF Struve, F.G.W.
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
21072-1355 STF2752 AB 1999 29 177 3.7 7.29 9.99 K1V D 210710.15-135522.1
21072-1355 STF2752 AB 2000 30 178 4.4 7.29 9.99 K1V N D 210710.15-135522.1
21072-1355 STF2752 AB 2010 31 182 3.5 7.29 9.99 K1V NOD 210710.15-135522.1
21072-1355 STF2752 AB 2015 32 180 4.4 7.29 9.99 K1V NO 210710.15-135522.1
21072-1355 STF2752 AB 2018 34 186 3.7 7.29 9.99 K1V NO 210710.38-135522.5

If you need more information about this double, apply for a data request form to the WDS.

 
 
WDS 21072-1355 STF 2752 AB (HD 200968) : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 21072-1355 STF 2752 AB (HD 200968) : MEASURES
 
 
No records found.

 
 
WDS 21072-1355 (HD 200968) : VIRTUAL EYEPIECE
 
 

21072-1355 STF2752A mag 7.29 Sp K1V 21072-1355 STF2752B sep 3.7 P.A. 185.50 mag 9.99 21072-1355 BU 157C sep 33.0 P.A. 285.60 mag 11.56 21072-1355 KPR 5D sep 221.6 P.A. 44.90 mag 12.2 virtual eyepiece
Click on the map to see the double of your interest.
Pass over with the mouse cursor to display the catalog designation.
Radius:
Components only
 
 
WDS 21072-1355 (HD 200968) : ALADIN DSS IMAGE @ 21h 07m 10.38s -13° 55' 22.5"
 
 
 
 
WDS 21072-1355 STF 2752 AB (HD 200968) : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

21072-1355 STF2752AB distance=0' 21096-1412 TDT2794 distance=40' 21101-1405 LDS5918 distance=46' 21100-1435 TDT2799 distance=58' 21084-1454 FOX 256 distance=62' 21108-1429 FOX 257 distance=63' 21109-1429 FOX 258 distance=64' 21103-1304 CBL 181 distance=69' 21070-1241 RST4693 distance=75' 21091-1512 KPP2066 distance=82' 21019-1326 WSP 70AB distance=83' 21019-1326 WSP 70AC distance=83' 21075-1524 UC 4384 distance=89' 21018-1440 BRT2778 distance=90' 21083-1222 TDT2779 distance=95' 21068-1534 HU 273 distance=100' 21124-1500 H 1 47 distance=100' 21079-1211 HU 84 distance=105' 21003-1312 RST4073 distance=110' 21131-1247 OCC 973 distance=111' 21024-1227 OCC 914 distance=113' 21133-1246 GWP3046 distance=113' 21026-1528 OCC1013 distance=115' 21137-1249 OCC 974 distance=116' 21001-1449 RST4072 distance=116' 21151-1340 KPP3124 distance=117' 21002-1507 OCC1006 distance=124' 21155-1424 OCC 589 distance=125' 20591-1313 HU 83 distance=126' 20590-1311 CVR 880 distance=128' 21025-1544 GWP3030 distance=128' 20587-1429 OCC 19AB distance=128' 20587-1429 SKF2094AC distance=128' 21152-1305 OCC 972 distance=129' 20588-1300 UC 4348 distance=135' 21080-1141 HO 149 distance=135' 21160-1312 YSC 118 distance=136' 21031-1151 BRT2779 distance=138' 21154-1508 GWP3049 distance=141' 21124-1149 OCC 403 distance=148' 21096-1622 HJ 1612 distance=151' 21145-1207 BRT2780 distance=154' 20581-1237 HU 82 distance=155' 21115-1132 VOU 30 distance=157' 21141-1155 TDT2845 distance=158' 21096-1122 TOK 633 distance=158' 20571-1453 TVB 318 distance=158' 21047-1630 KPP 483 distance=159' 21008-1606 GWP3028 distance=161' 20562-1331 TDT2644 distance=163' 21177-1252 KPP 489 distance=166' grafico limitrofi
Click on the map to see the double of your interest.
Pass over with the mouse cursor to display the catalog designation.
Show name coord_2000 discov# comp pa sep dist(')
Show 21072-1355 STF2752 AB 186 3.7
Show 21072-1355 BU 157 AC 285 33.9
Show 21072-1355 KPR 5 AD 46 225.0
Show 21096-1412 TDT2794 261 0.4 40
Show 21101-1405 LDS5918 351 312.3 46
Show 21100-1435 TDT2799 153 1.4 58
Show 21084-1454 FOX 256 280 16.4 62
Show 21108-1429 FOX 257 355 12.7 63
Show 21109-1429 FOX 258 40 9.1 64
Show 21103-1304 CBL 181 246 17.1 69
Show 21070-1241 RST4693 51 0.3 75
Show 21091-1512 KPP2066 350 16.6 82
Show 21019-1326 WSP 70 AB 168 3.2 83
Show 21019-1326 WSP 70 AC 65 12.0 83
Show 21075-1524 UC 4384 335 8.5 89
Show 21018-1440 BRT2778 179 3.5 90
Show 21083-1222 TDT2779 95 0.7 95
Show 21068-1534 HU 273 114 4.2 100
Show 21124-1500 H 1 47 309 4.2 100
Show 21079-1211 HU 84 324 4.7 105
Show 21003-1312 RST4073 4 0.4 110
Show 21131-1247 OCC 973 -1 0.1 111
Show 21024-1227 OCC 914 -1 0.1 113
Show 21133-1246 GWP3046 353 23.7 113
Show 21026-1528 OCC1013 -1 0.0 115
Show 21137-1249 OCC 974 -1 0.2 116
Show 21001-1449 RST4072 142 1.9 116
Show 21151-1340 KPP3124 108 6.2 117
Show 21002-1507 OCC1006 -1 0.1 124
Show 21155-1424 OCC 589 -1 0.2 125
Show 20591-1313 HU 83 99 0.3 126
Show 20590-1311 CVR 880 16 7.7 128
Show 21025-1544 GWP3030 37 56.1 128
Show 20587-1429 OCC 19 AB -1 0.1 128
Show 20587-1429 SKF2094 AC 118 129.0 128
Show 21152-1305 OCC 972 -1 0.1 129
Show 20588-1300 UC 4348 260 18.4 135
Show 21080-1141 HO 149 300 0.8 135
Show 21160-1312 YSC 118 252 0.5 136
Show 21031-1151 BRT2779 120 4.1 138
Show 21154-1508 GWP3049 298 23.2 141
Show 21124-1149 OCC 403 74 0.0 148
Show 21096-1622 HJ 1612 136 5.4 151
Show 21145-1207 BRT2780 347 3.4 154
Show 20581-1237 HU 82 1 2.7 155
Show 21115-1132 VOU 30 149 0.2 157
Show 21141-1155 TDT2845 64 0.5 158
Show 21096-1122 TOK 633 313 999.9 158
Show 20571-1453 TVB 318 49 16.0 158
Show 21047-1630 KPP 483 76 3.9 159
Show 21008-1606 GWP3028 345 14.1 161

 
 
WDS 21072-1355 : COMPONENTS
 
 
  A B C
B pa=185.5°
sep=3.72"
 
C pa=285.6°
sep=32.98"
pa=291.8°
sep=33.83"
 
D pa=44.9°
sep=221.59"
pa=44.3°
sep=224.47"
pa=51.8°
sep=239.47"
 
 
21072-1355 A
 
 
Name HD 200968 Coord arcsec 2000 210710.38-135522.5 Mag 7.29 Spectral class K1V (yellow-orange)
PmRA 382.00 PmDE -47.0 SAO 164147 HIP 104239
Tycho2 5783-01074-1 HD 200968 GC 29501 BD BD-14 5936
Tycho2
Tycho2 5783-01074-1 Pflag RAmdeg 316.79325766 DEmdeg -13.92291761
PmRA 382.3 PmDE -39.9 E RAmdeg 4 E DEmdeg 5
E pmRA 0.9 E pmDE 0.8 EpRAm 1991.46 EpDEm 1991.07
Num 17 Q RAmdeg 1.5 Q DEmdeg 2.4 Q pmRA 1.4
Q pmDE 2.5 BTmag 8.325 E BTmag 0.016 VTmag 7.293
E VTmag 0.010 Prox 43 TYC T HIP 104239
CCDM A RAdeg 316.79236028 DEdeg -13.92282472 EpRA 1990 1.80
EpDE 1990 1.71 E RAdeg 4.2 E DEdeg 5.2 Posflg
Corr -0.3
SAO
SAO 164147 DelFlag RA1950 PmRA1950 0.0267
DE1950 PmDE1950 -0.027 Vmag 7.2 SpType K0
Double code Source 70 CatNum 29501 DM BD-14 5936
DMcomp BDsup HD 200968 M HD 0
GC 29501 RA1950rad 5.51697205 DE1950rad -0.24650905 PmRA2000 0.0269
PmDE2000 -0.027
Hipparcos
Catalog H HIP 104239 Proxy H RAhms 21 07 10.15
DEdms -13 55 22.1 Vmag 7.12 VarFlag 1 R Vmag H
RAdeg 316.792 DEdeg -13.9228 AstroRef A Plx 56.67
CCDM 21072-1355 N CCDM I Nsys 1 Ncomp 2
MultFlag C Source Qual A M HIP AB
Theta 175 Rho 4.309 HD 200968 BD BD-14 5936
CD CP Dm number -14 5936 VIred 0.99
SpType K1V R SpType Coord arcsec 2000 210710.15-135522.1
Hipparcos 2
HIP 104239 Sn 15 So 3 Nc 2
RArad 5.5290686043 DErad -0.2429989858 Plx 56.9 PmRA 382.85
PmDE -46.7 E RArad 0.53 E DErad 0.29 E Plx 0.6
E pmRA 0.72 E pmDE 0.29 Hpmag 7.27 E Hpmag 0.0021
SHp 0.016 VA 2 BV 0.901 E BV 0.007
VI 0.99
CCDM
Ccdm 21072-1355 RComp Comp A Note1
Note2 Discov num DRAs -1.56 DDEs -21.0
R dRAs 10 Year Theta Rho
Obs 3 Vmag 7.2 Sp K0 PmNote *
PmRA 389 PmDE -27 Dm number -14 5936 Cat1 BD
Name2 164147 Cat2 SAO HD 200968 M HD
ADS BDS A14638 M ADS BDS N IDS IDS 21016S1419A
HIC 104239
 
 
21072-1355 B
 
 
Coord arcsec 2000 210710.36-135526.2 Mag 9.99 PmRA 362.00 PmDE -33.0
Calc delta mag 2.7 Calc coord yes
CCDM
Ccdm 21072-1355 RComp Comp B Note1
Note2 Discov num STF2752 DRAs DDEs
R dRAs Year 1959 Theta 167 Rho 4.9
Obs 12 Vmag 11.2 Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS A14638 M ADS BDS N IDS IDS 21016S1419B
HIC 104239
 
 
21072-1355 C
 
 
Coord arcsec 2000 210708.20-135513.6 Mag 11.56 PmRA 1.00 PmDE 58.0
Calc delta mag 4.27 Calc coord yes
CCDM
Ccdm 21072-1355 RComp Comp C Note1
Note2 Discov num BU 157 DRAs DDEs
R dRAs Year 1959 Theta 301 Rho 11.7
Obs 10 Vmag 12.5 Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS A14638 M ADS BDS N IDS IDS 21016S1419C
HIC
 
 
21072-1355 D
 
 
Coord arcsec 2000 210721.13-135245.7 Mag 12.2 PmRA 12.00 PmDE -13.0
Tycho2 5783-00512-1 Calc delta mag 4.91 Calc coord yes
Tycho2
Tycho2 5783-00512-1 Pflag RAmdeg 316.84174971 DEmdeg -13.87913340
PmRA 12.4 PmDE -14.4 E RAmdeg 62 E DEmdeg 87
E pmRA 2.7 E pmDE 2.8 EpRAm 1985.85 EpDEm 1979.27
Num 2 Q RAmdeg Q DEmdeg Q pmRA
Q pmDE BTmag 12.239 E BTmag 0.157 VTmag 11.787
E VTmag 0.162 Prox 999 TYC HIP
CCDM RAdeg 316.84172111 DEdeg -13.87910083 EpRA 1990 1.89
EpDE 1990 1.82 E RAdeg 64.1 E DEdeg 93.5 Posflg
Corr -0.3